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发明公开
CN105771959A 一种复合金属氧化物催化剂及其制备方法和应用 有权 转让

一种复合金属氧化物催化剂及其制备方法和应用
摘要：
本发明提供一种复合金属氧化物催化剂，它以SiO2为载体，含有由下列通式(1)表示的活性组分：Mo1VaSbbNbcMdNeOn(1)，式(1)中，M为Cr、Co、Mn或Ni中的至少一种；N为Cs、Ca、Sr或Ba中的至少一种；a、b、c、d和e分别表示钒(V)、锑(Sb)、铌(Nb)、M和N元素相对于钼(Mo)元素的摩尔比值，且各自取值如下：0.1≤a≤1.0，0.1≤b≤1.0，0.01≤c≤0.50，0.00001≤d≤0.00200，0.00001≤e≤0.00200，n为满足其它元素化合价所需的氧原子总数。本发明所述的催化剂在饱和烷烃氨氧化反应中，丙烯腈选择性高，且催化剂合成的重复性较好。
摘要（英）：

The invention provides a composite metal oxide catalyst. SiO2 is the carrier of the catalyst. The formula (1) of the catalyst is Mo<1>VSbNbMNO; in the formula (1), M represents at least one of Cr, Co, Mn, and Ni; N represents at least one of Cs, Ca, Sr and Ba; a, b, c, d, and e individually represents a mole ratio of V, Sb, Nb, M and N to Mo; a is not less than 0.1 and is not greater than 1.0, b is not less than 0.1 and is not greater than 1.0, c is not less than 0.01 and is not greater than 0.50, d is not less than 0.00001 and is not greater than 0.00200, e is not less than 0.00001 and is not more than 0.00200, and n represents the total number of oxygen atoms, and the oxygen atoms should meet the condition that the valence of the catalyst is zero. The provided catalyst is applied to ammoxidation reactions of saturated alkane, the selectivity of acrylonitrile is high, and the repeatability of catalyst synthesis is good.

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